AUTOMATIC OPENER KIT! 600kg AC 110V Rolling Door Side Motor Aluminium and Iron Electric Garage Door Control Opener

The door opener came with no instructions, except for some info on motor electrics. I made it work on my roll-up door, but had to make modifications. Perhaps my door did not match normal installations. If I were a professional installer it might have been different. I got it installed and it works.

all the parts are not in the box it is a piece of junk!